TY  - BOOK
AU  - Sober, Elliott.
TI  - Conceptual issues in evolutionary biology
SN  - 0262195496 (alk. paper
U1  - 576.8 
PY  - 2006///
CY  - Cambridge, Mass.
PB  - MIT Press
KW  - Evolution (Biology
KW  - Philosophy
KW  - Biology
N1  - Includes bibliographical references and index
ER  -